Hello, same problem here after upgrading from 2.0.18 to 2.1.0, apparently it happens only on servers with qmail, not on servers with exim or dovecot as lda:
I'm using the dovecot LDA, but then it's not clear if the messages affected are REALLY old and thus might predate the use of the dovecot LDA...
Mar 2 10:18:45 mercurio dovecot: pop3(user): Error: Cached message size smaller than expected (59998 < 60150) Mar 2 10:18:45 mercurio dovecot: pop3(user): Error: Maildir filename has wrong S value, renamed the file from /home/vpopmail/domains/2/root/Maildir/cur/1330679783.8428.mercurio,S=59998:2, to /home/vpopmail/domains/2/root/Maildir/cur/1330679783.8428.mercurio,S=60150:2, Mar 2 10:18:45 mercurio dovecot: pop3(user): Error: Corrupted index cache file /home/vpopmail/domains/2/root/Maildir/dovecot.index.cache: Broken physical size for mail UID 40669 Mar 2 10:18:45 mercurio dovecot: pop3(user): Error: read(/home/vpopmail/domains/2/root/Maildir/cur/1330679783.8428.mercurio,S=59998:2,) failed: Input/output error (uid=40669)
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